A $4\mathrm{.}5-$cmcm$-$wide diffraction grating has $1700$ slits. It is illuminated by light of wavelength $500$ nmnm$.$

Part A

What is the angle $($in degrees$)$ of the first diffraction order? $$

Express your answer in degrees.

View Available Hint$($s$)$for Part A

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$1$$1=$

nothing

$$

Submit

Part B

What is the angle $($in degrees$)$ of the second diffraction order? $$

Express your answer in degrees.

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Activate to select the appropriates template from the following choices. Operate up and down arrow for selection and press enter to choose the input value typeActivate to select the appropriates symbol from the following choices. Operate up and down arrow for selection and press enter to choose the input value type

$2$$2=$